Project Number Date
test_Tails_ISO_stable 5967 24 Nov 2025, 21:11

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 15:9.318 Passed
Tags: @product @slow @not_release_blocker
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
Tags: @product @slow @not_release_blocker
44.739
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.128
And I prepare Tails for memory erasure tests 0.376
When I start a process allocating 128 MiB of memory with a known pattern 1.183
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.538 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.149
Then I find very few patterns in the guest's memory after 5 seconds 19.363 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.692
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.532
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.917
And I prepare Tails for memory erasure tests 0.440
And I find very few patterns in the guest's memory 14.375 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.761
Then patterns cover at least 99% of the test FS size in the guest's memory 14.680 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.087
Then I find very few patterns in the guest's memory after 3 seconds 17.268 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.879
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:42.205
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.080
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.342
Then I find very few patterns in the guest's memory 15.809 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.097
Then patterns cover at least 75% of the test FS size in the guest's memory 16.489 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.363
Then I find very few patterns in the guest's memory after 3 seconds 17.330 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
# read cache
When I mount the USB drive again 0.168
And I read the content of the test FS 0.689
Then patterns cover at least 99% of the test FS size in the guest's memory 15.173 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.145
Then I find very few patterns in the guest's memory after 3 seconds 19.167 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.751
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:19.801
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.854
And I prepare Tails for memory erasure tests 0.582
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.780
Then I find very few patterns in the guest's memory 28.796 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.620
Then patterns cover at least 99% of the test FS size in the guest's memory 31.709 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 33.686 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 2.720
And I read the content of the test FS 0.417
Then patterns cover at least 99% of the test FS size in the guest's memory 30.301 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.832
Then I find very few patterns in the guest's memory after 3 seconds 32.060 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.819
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:8.186
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.742
And I prepare Tails for memory erasure tests 0.530
When I fill a 128 MiB file with a known pattern on the root filesystem 9.665
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.302
Then patterns cover at least 128 MiB in the guest's memory 21.996 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 26.935 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 3.805
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:17.852
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:43.059
And I prepare Tails for memory erasure tests 0.366
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.899
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 25.516 
Pattern coverage: 0.000% (0 MiB out of 1529 MiB reference memory)
After features/support/hooks.rb:331 3.806
After features/support/hooks.rb:100 0.014